sched: move around resched_task()

move resched_task()/resched_cpu() into the 'public interfaces'
section of sched.c, for use by kernel/sched_fair/rt/idletask.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 52 insertions, 52 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 53c0ee742f69..e642bfa61fe3 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -617,6 +617,58 @@ static inline struct rq *this_rq_lock(void)
         return rq;
 }
 
+/*
+ * resched_task - mark a task 'to be rescheduled now'.
+ *
+ * On UP this means the setting of the need_resched flag, on SMP it
+ * might also involve a cross-CPU call to trigger the scheduler on
+ * the target CPU.
+ */
+#ifdef CONFIG_SMP
+
+#ifndef tsk_is_polling
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+#endif
+
+static void resched_task(struct task_struct *p)
+{
+        int cpu;
+
+        assert_spin_locked(&task_rq(p)->lock);
+
+        if (unlikely(test_tsk_thread_flag(p, TIF_NEED_RESCHED)))
+                return;
+
+        set_tsk_thread_flag(p, TIF_NEED_RESCHED);
+
+        cpu = task_cpu(p);
+        if (cpu == smp_processor_id())
+                return;
+
+        /* NEED_RESCHED must be visible before we test polling */
+        smp_mb();
+        if (!tsk_is_polling(p))
+                smp_send_reschedule(cpu);
+}
+
+static void resched_cpu(int cpu)
+{
+        struct rq *rq = cpu_rq(cpu);
+        unsigned long flags;
+
+        if (!spin_trylock_irqsave(&rq->lock, flags))
+                return;
+        resched_task(cpu_curr(cpu));
+        spin_unlock_irqrestore(&rq->lock, flags);
+}
+#else
+static inline void resched_task(struct task_struct *p)
+{
+        assert_spin_locked(&task_rq(p)->lock);
+        set_tsk_need_resched(p);
+}
+#endif
+
 #include "sched_stats.h"
 
 /*
@@ -953,58 +1005,6 @@ static void deactivate_task(struct task_struct *p, struct rq *rq)
         p->array = NULL;
 }
 
-/*
- * resched_task - mark a task 'to be rescheduled now'.
- *
- * On UP this means the setting of the need_resched flag, on SMP it
- * might also involve a cross-CPU call to trigger the scheduler on
- * the target CPU.
- */
-#ifdef CONFIG_SMP
-
-#ifndef tsk_is_polling
-#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
-#endif
-
-static void resched_task(struct task_struct *p)
-{
-        int cpu;
-
-        assert_spin_locked(&task_rq(p)->lock);
-
-        if (unlikely(test_tsk_thread_flag(p, TIF_NEED_RESCHED)))
-                return;
-
-        set_tsk_thread_flag(p, TIF_NEED_RESCHED);
-
-        cpu = task_cpu(p);
-        if (cpu == smp_processor_id())
-                return;
-
-        /* NEED_RESCHED must be visible before we test polling */
-        smp_mb();
-        if (!tsk_is_polling(p))
-                smp_send_reschedule(cpu);
-}
-
-static void resched_cpu(int cpu)
-{
-        struct rq *rq = cpu_rq(cpu);
-        unsigned long flags;
-
-        if (!spin_trylock_irqsave(&rq->lock, flags))
-                return;
-        resched_task(cpu_curr(cpu));
-        spin_unlock_irqrestore(&rq->lock, flags);
-}
-#else
-static inline void resched_task(struct task_struct *p)
-{
-        assert_spin_locked(&task_rq(p)->lock);
-        set_tsk_need_resched(p);
-}
-#endif
-
 /**
  * task_curr - is this task currently executing on a CPU?
  * @p: the task in question.